Multifunctional cantilever-free scanning probe arrays coated with multilayer graphene

作者：Shim Wooyoung; Brown Keith A; Zhou Xiaozhu; Rasin Boris; Liao Xing; Mirkin Chad A^*

来源：Proceedings of the National Academy of Sciences of the United States of America, 2012, 109(45): 18312-18317.

DOI：10.1073/pnas.1216183109

• scanning probe microscopy
• tip modification
• energy delivery
• tip wear
• friction

Scanning probe instruments have expanded beyond their traditional role as imaging or %26quot;reading%26quot; tools and are now routinely used for %26quot;writing.%26quot; Although a variety of scanning probe lithography techniques are available, each one imposes different requirements on the types of probes that must be used. Additionally, throughput is a major concern for serial writing techniques, so for a scanning probe lithography technique to become widely applied, there needs to be a reasonable path toward a scalable architecture. Here, we use a multilayer graphene coating method to create multifunctional massively parallel probe arrays that have wear-resistant tips of uncompromised sharpness and high electrical and thermal conductivities. The optical transparency and mechanical flexibility of graphene allow this procedure to be used for coating exceptionally large, cantilever-free arrays that can pattern with electrochemical desorption and thermal, in addition to conventional, dip-pen nanolithography.

• 出版日期2012-11-6
• 单位西北大学; 南阳理工学院